component
MC74VHC1GT125DBVT1G
Public Made by Adomby adom
onsemi Buffers, Drivers, Receivers, Transceivers, SC-74A-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
MC74VHC1GT125DBVT1G
onsemi · Buffers, Drivers, Receivers, Transceivers · SC-74A-5
MC74VHC1GT125DBVT1G from onsemi, in a SC-74A-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OE | input | Active-low output enable: when OE is low the buffer passes A to Y, and when OE is high Y is placed in the high-impedance (Z) state; inputs tolerate up to 5.5 V regardless of VCC. |
| 2 | A | input | Data input of the noninverting 3-state buffer, which is protected for voltages up to 5.5 V applied regardless of the supply voltage. |
| 3 | GND | power_in | Ground reference pin for the device. |
| 4 | Y | tri_state | 3-state buffer output that follows A when enabled and goes high impedance when OE is high; output structures protect the device when VCC = 0 V and when the output voltage exceeds VCC. |
| 5 | VCC | power_in | Positive supply pin; the device is designed for 2.0 V to 5.5 V VCC operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SC-74A-5 |
| Category | Logic |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Supply Voltage | VCC | -0.5 | 6.5 | V | 3 | ||
| DC Input Voltage | VIN | -0.5 | 6.5 | V | 3 | ||
| DC Output Voltage | VOUT | -0.5 | V | Active-Mode (High or Low State) | 3 | ||
| DC Output Voltage | VOUT | -0.5 | 6.5 | V | Tri-State Mode (Note 1) | 3 | |
| DC Input Diode Current | IIK | -20 | mA | VIN < GND | 3 | ||
| DC Output Diode Current | IOK | -20 | mA | VOUT < GND | 3 | ||
| DC Output Source/Sink Current | IOUT | -25 | 25 | mA | 3 | ||
| DC Supply Current per Supply Pin or Ground Pin | ICC or IGND | -50 | 50 | mA | 3 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature | TL | 260 | °C | 1 mm from case for 10 s | 3 | ||
| Junction Temperature Under Bias | TJ | 150 | °C | 3 | |||
| Thermal Resistance, Junction-to-Ambient, SC-74A | θJA | 320 | °C/W | Minimum pad spacing on FR4, JESD51-7 | 3 | ||
| Power Dissipation in Still Air, SC-74A | PD | 390 | mW | 3 | |||
| Positive DC Supply Voltage | VCC | 2 | 5.5 | V | 4 | ||
| DC Input Voltage | VIN | 0 | 5.5 | V | 4 | ||
| DC Output Voltage (SC-74A) | VOUT | 0 | V | Active-Mode (High or Low State) | 4 | ||
| DC Output Voltage (SC-74A) | VOUT | 0 | 5.5 | V | Tri-State Mode (Note 1) | 4 | |
| Operating Temperature Range | TA | -55 | 125 | °C | 4 | ||
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | 20 | ns/V | VCC = 2.0 V | 4 | |
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | 10 | ns/V | VCC = 3.0 V to 3.6 V | 4 | |
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | 5 | ns/V | VCC = 4.5 V to 5.5 V | 4 | |
| High-Level Input Voltage | VIH | 1 | V | VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Input Voltage | VIH | 1.4 | V | VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Input Voltage | VIH | 2 | V | VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Low-Level Input Voltage | VIL | 0.28 | V | VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Low-Level Input Voltage | VIL | 0.45 | V | VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Low-Level Input Voltage | VIL | 0.8 | V | VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Output Voltage | VOH | 1.9 | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Output Voltage | VOH | 2.9 | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Output Voltage | VOH | 4.4 | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Output Voltage | VOH | 2.34 | V | VIN = VIH or VIL; IOH = −4 mA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| High-Level Output Voltage | VOH | 3.66 | V | VIN = VIH or VIL; IOH = −8 mA; VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Low-Level Output Voltage | VOL | 0.1 | V | VIN = VIH or VIL; IOL = 50 µA; VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Low-Level Output Voltage | VOL | 0.52 | V | VIN = VIH or VIL; IOL = 4 mA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Input Leakage Current | IIN | 1 | µA | VIN = 5.5 V or GND; VCC = 2.0 to 5.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| 3-State Output Leakage Current | IOZ | 2.5 | µA | VOUT = 0 V to 5.5 V; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Power Off Leakage Current | IOFF | 10 | µA | VIN = 5.5 V or VOUT = 5.5 V; VCC = 0 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Quiescent Supply Current | ICC | 40 | µA | VIN = VCC or GND; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Increase in Quiescent Supply Current per Input Pin | ICCT | 1.65 | mA | One Input: VIN = 3.4 V; Other Input at VCC or GND; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 | ||
| Propagation Delay, A to Y | tPLH, tPHL | 12 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Propagation Delay, A to Y | tPLH, tPHL | 16 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Propagation Delay, A to Y | tPLH, tPHL | 8.5 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Propagation Delay, A to Y | tPLH, tPHL | 10.5 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Enable Time, OE to Y | tPZL, tPZH | 11.5 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Enable Time, OE to Y | tPZL, tPZH | 15 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Enable Time, OE to Y | tPZL, tPZH | 8.5 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Enable Time, OE to Y | tPZL, tPZH | 10.5 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Disable Time, OE to Y | tPLZ, tPHZ | 14.5 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Disable Time, OE to Y | tPLZ, tPHZ | 18 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Disable Time, OE to Y | tPLZ, tPHZ | 10 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Output Disable Time, OE to Y | tPLZ, tPHZ | 12 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 | ||
| Input Capacitance | CIN | 10 | pF | −55°C ≤ TA ≤ 125°C | 7 |
CAD (KiCad official)
- Symbol:
MC74VHC1GT125DBVT1G - Footprint:
Package_TO_SOT_SMD:SC-74A-5_1.55x2.9mm_P0.95mm - 3D model: SC-74A-5 (KiCad packages3D, STEP)
- 3D model files:
mc74vhc1gt125dbvt1g-etched.step/mc74vhc1gt125dbvt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc74vhc1gt125dbvt1g.step/mc74vhc1gt125dbvt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (17 pp, sha256
a15e45f8c1c202da, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# MC74VHC1GT125DBVT1G
**onsemi** · Buffers, Drivers, Receivers, Transceivers · SC-74A-5
MC74VHC1GT125DBVT1G from onsemi, in a SC-74A-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OE | input | Active-low output enable: when OE is low the buffer passes A to Y, and when OE is high Y is placed in the high-impedance (Z) state; inputs tolerate up to 5.5 V regardless of VCC. |
| 2 | A | input | Data input of the noninverting 3-state buffer, which is protected for voltages up to 5.5 V applied regardless of the supply voltage. |
| 3 | GND | power_in | Ground reference pin for the device. |
| 4 | Y | tri_state | 3-state buffer output that follows A when enabled and goes high impedance when OE is high; output structures protect the device when VCC = 0 V and when the output voltage exceeds VCC. |
| 5 | VCC | power_in | Positive supply pin; the device is designed for 2.0 V to 5.5 V VCC operation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SC-74A-5 |
| Category | Logic |
| Pins | 5 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Supply Voltage | VCC | -0.5 | | 6.5 | V | | 3 |
| DC Input Voltage | VIN | -0.5 | | 6.5 | V | | 3 |
| DC Output Voltage | VOUT | -0.5 | | | V | Active-Mode (High or Low State) | 3 |
| DC Output Voltage | VOUT | -0.5 | | 6.5 | V | Tri-State Mode (Note 1) | 3 |
| DC Input Diode Current | IIK | -20 | | | mA | VIN < GND | 3 |
| DC Output Diode Current | IOK | -20 | | | mA | VOUT < GND | 3 |
| DC Output Source/Sink Current | IOUT | -25 | | 25 | mA | | 3 |
| DC Supply Current per Supply Pin or Ground Pin | ICC or IGND | -50 | | 50 | mA | | 3 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 3 |
| Lead Temperature | TL | | | 260 | °C | 1 mm from case for 10 s | 3 |
| Junction Temperature Under Bias | TJ | | | 150 | °C | | 3 |
| Thermal Resistance, Junction-to-Ambient, SC-74A | θJA | | | 320 | °C/W | Minimum pad spacing on FR4, JESD51-7 | 3 |
| Power Dissipation in Still Air, SC-74A | PD | | | 390 | mW | | 3 |
| Positive DC Supply Voltage | VCC | 2 | | 5.5 | V | | 4 |
| DC Input Voltage | VIN | 0 | | 5.5 | V | | 4 |
| DC Output Voltage (SC-74A) | VOUT | 0 | | | V | Active-Mode (High or Low State) | 4 |
| DC Output Voltage (SC-74A) | VOUT | 0 | | 5.5 | V | Tri-State Mode (Note 1) | 4 |
| Operating Temperature Range | TA | -55 | | 125 | °C | | 4 |
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | | 20 | ns/V | VCC = 2.0 V | 4 |
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | | 10 | ns/V | VCC = 3.0 V to 3.6 V | 4 |
| Input Rise and Fall Time (SC-74A) | tr, tf | 0 | | 5 | ns/V | VCC = 4.5 V to 5.5 V | 4 |
| High-Level Input Voltage | VIH | 1 | | | V | VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Input Voltage | VIH | 1.4 | | | V | VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Input Voltage | VIH | 2 | | | V | VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| Low-Level Input Voltage | VIL | | | 0.28 | V | VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| Low-Level Input Voltage | VIL | | | 0.45 | V | VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| Low-Level Input Voltage | VIL | | | 0.8 | V | VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Output Voltage | VOH | 1.9 | | | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Output Voltage | VOH | 2.9 | | | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Output Voltage | VOH | 4.4 | | | V | VIN = VIH or VIL; IOH = −50 µA; VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Output Voltage | VOH | 2.34 | | | V | VIN = VIH or VIL; IOH = −4 mA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| High-Level Output Voltage | VOH | 3.66 | | | V | VIN = VIH or VIL; IOH = −8 mA; VCC = 4.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| Low-Level Output Voltage | VOL | | | 0.1 | V | VIN = VIH or VIL; IOL = 50 µA; VCC = 2.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| Low-Level Output Voltage | VOL | | | 0.52 | V | VIN = VIH or VIL; IOL = 4 mA; VCC = 3.0 V; −55°C ≤ TA ≤ 125°C | 6 |
| Input Leakage Current | IIN | | | 1 | µA | VIN = 5.5 V or GND; VCC = 2.0 to 5.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| 3-State Output Leakage Current | IOZ | | | 2.5 | µA | VOUT = 0 V to 5.5 V; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| Power Off Leakage Current | IOFF | | | 10 | µA | VIN = 5.5 V or VOUT = 5.5 V; VCC = 0 V; −55°C ≤ TA ≤ 125°C | 6 |
| Quiescent Supply Current | ICC | | | 40 | µA | VIN = VCC or GND; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| Increase in Quiescent Supply Current per Input Pin | ICCT | | | 1.65 | mA | One Input: VIN = 3.4 V; Other Input at VCC or GND; VCC = 5.5 V; −55°C ≤ TA ≤ 125°C | 6 |
| Propagation Delay, A to Y | tPLH, tPHL | | | 12 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Propagation Delay, A to Y | tPLH, tPHL | | | 16 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Propagation Delay, A to Y | tPLH, tPHL | | | 8.5 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Propagation Delay, A to Y | tPLH, tPHL | | | 10.5 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Enable Time, OE to Y | tPZL, tPZH | | | 11.5 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Enable Time, OE to Y | tPZL, tPZH | | | 15 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Enable Time, OE to Y | tPZL, tPZH | | | 8.5 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Enable Time, OE to Y | tPZL, tPZH | | | 10.5 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Disable Time, OE to Y | tPLZ, tPHZ | | | 14.5 | ns | CL = 15 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Disable Time, OE to Y | tPLZ, tPHZ | | | 18 | ns | CL = 50 pF; VCC = 3.0 to 3.6 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Disable Time, OE to Y | tPLZ, tPHZ | | | 10 | ns | CL = 15 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Output Disable Time, OE to Y | tPLZ, tPHZ | | | 12 | ns | CL = 50 pF; VCC = 4.5 to 5.5 V; −55°C ≤ TA ≤ 125°C | 7 |
| Input Capacitance | CIN | | | 10 | pF | −55°C ≤ TA ≤ 125°C | 7 |
## CAD (KiCad official)
- Symbol: `MC74VHC1GT125DBVT1G`
- Footprint: `Package_TO_SOT_SMD:SC-74A-5_1.55x2.9mm_P0.95mm`
- 3D model: SC-74A-5 (KiCad packages3D, STEP)
- 3D model files: `mc74vhc1gt125dbvt1g-etched.step` / `mc74vhc1gt125dbvt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc74vhc1gt125dbvt1g.step` / `mc74vhc1gt125dbvt1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589986211852161025) (17 pp, sha256 `a15e45f8c1c202da`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/mc74vhc1gt125dbvt1g-datasheet.pdf)